M
Masanori Okumura
Researcher at Fujita Health University
Publications - 18
Citations - 1789
Masanori Okumura is an academic researcher from Fujita Health University. The author has contributed to research in topics: Intravascular ultrasound & Acute coronary syndrome. The author has an hindex of 11, co-authored 18 publications receiving 1649 citations.
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Journal ArticleDOI
Multislice computed tomographic characteristics of coronary lesions in acute coronary syndromes.
Sadako Motoyama,Takeshi Kondo,Masayoshi Sarai,Atsushi Sugiura,Hiroto Harigaya,Takahisa Sato,Kaori Inoue,Masanori Okumura,Junichi Ishii,Hirofumi Anno,Renu Virmani,Yukio Ozaki,Hitoshi Hishida,Jagat Narula +13 more
TL;DR: The CT characteristics of plaques associated with ACS include positive vascular remodeling, low plaque density, and spotty calcification, and it is logical to presume that plaques vulnerable to rupture harbor similar characteristics.
Journal ArticleDOI
The fate of incomplete stent apposition with drug-eluting stents: An optical coherence tomography-based natural history study
Yukio Ozaki,Masanori Okumura,Tevfik F Ismail,Hiroyuki Naruse,Kousuke Hattori,Shino Kan,Makoto Ishikawa,Tomoko Kawai,Yasushi Takagi,Junichi Ishii,Francesco Prati,Patrick W. Serruys +11 more
TL;DR: In patients with SESs, ISA can fail to heal and even complete apposition can be associated with no neointimal hyperplasia, and may constitute a potent substrate for late stent thrombosis.
Journal ArticleDOI
Impact of Statin Therapy on Plaque Characteristics as Assessed by Serial OCT, Grayscale and Integrated Backscatter–IVUS
Kousuke Hattori,Yukio Ozaki,Tevfik F Ismail,Masanori Okumura,Hiroyuki Naruse,Shino Kan,Makoto Ishikawa,Tomoko Kawai,Masaya Ohta,Hideki Kawai,Tousei Hashimoto,Yasushi Takagi,Junichi Ishii,Patrick W. Serruys,Jagat Narula +14 more
TL;DR: Assessment of the effect of statin treatment on coronary plaque composition and morphology by optical coherence tomography, grayscale and integrated backscatter and IB-IVUS revealed favorable plaque morphologic changes with an increase in fibrous cap thickness, and decreases in both percentage plaque and lipid volume indexes.
Journal ArticleDOI
Coronary CT angiographic characteristics of culprit lesions in acute coronary syndromes not related to plaque rupture as defined by optical coherence tomography and angioscopy
Yukio Ozaki,Masanori Okumura,Tevfik F Ismail,Sadako Motoyama,Hiroyuki Naruse,Kousuke Hattori,Hideki Kawai,Masayoshi Sarai,Yasushi Takagi,Junichi Ishii,Hirofumi Anno,Renu Virmani,Patrick W. Serruys,Jagat Narula +13 more
TL;DR: Assessment of CT characteristics of acute coronary syndrome lesions found distinct culprit lesion characteristics associated with non-rupture-related mechanisms are not identified by CT angiography, and it will not be possible to differentiate plaques likely to develop IFC-ACS from stable plaques.
Journal ArticleDOI
Pentraxin 3 in unstable angina and non-ST-segment elevation myocardial infarction.
Shigeru Matsui,Junnichi Ishii,Fumihiko Kitagawa,Atsuhiro Kuno,Kousuke Hattori,Makoto Ishikawa,Masanori Okumura,Shino Kan,Tadashi Nakano,Hiroyuki Naruse,Ikuko Tanaka,Masanori Nomura,Hitoshi Hishida,Yukio Ozaki +13 more
TL;DR: PTX3 and NT-proBNP may be potent and independent predictors for 6-month cardiac events in patients hospitalized for UA/NSTEMI within 24h after the onset of chest symptoms, and measurement of plasma PTX3 may substantially improve the early risk stratification of patients with UA/ NSTEMI.